Do You Need an SSL Certificate? Website Security Basics

Do you need an SSL certificate? Yes, and it is free

Let's clear this up first, because it is the question most owners ask. Yes, you need an SSL certificate. Every website needs one, even a simple five-page site with no shopping cart and no logins. There is no version of a small business website where skipping it is the right call.

Here is the part that surprises people. It is free. Let's Encrypt runs a free, automated, and open Certificate Authority that is frequently issuing ten million certificates per day and is closing in on protecting one billion web sites (Let's Encrypt, 2025). Most hosting companies install one for you with a single click. So the cost is not money. The cost is simply knowing to switch it on.

If you are building your first site, our guide on how to build a small business website walks through the whole setup, and security is part of it from day one.

What SSL and HTTPS actually do

SSL and HTTPS are the same idea wearing two names. SSL is the certificate. HTTPS is the secure address it gives you, the one with the little padlock. When both are on, the traffic between your visitor and your site is scrambled so nobody in between can read it.

Think of it like sealing a letter instead of sending a postcard. Without HTTPS, anyone who handles your message can read it. With it, the message is locked. That matters most when a customer types something private, like a name and email into your contact form, or card details at checkout.

There is a bonus too. Google confirmed in 2014 that HTTPS is a ranking signal. It is a light one, so it will not rocket you to the top by itself. Still, it is one less thing holding you back, and it pairs nicely with the rest of your SEO basics.

The Not Secure warning and why it scares customers

If your site has no SSL certificate, modern browsers flag it. Google Chrome announced that you will see a new Not Secure notification when visiting HTTP pages (Google, Chrome). That little warning sits right next to your web address, in front of every visitor.

Now picture a customer who found you through a search and lands on a page that says Not Secure. They do not know it just means missing encryption. To them it reads as broken, dodgy, or unsafe. So they leave, and they may never come back. You lose the sale before your homepage even finishes loading.

That is why this matters even for sites that sell nothing online. The warning does not care whether you take payments. It simply appears, and it quietly chips away at trust on every single visit.

SSL is necessary but not enough: the real risk is outdated software

Here is the trap. Many owners add SSL, see the padlock, and assume their site is now safe. It is not. SSL protects data while it travels. It does nothing to protect the software your site is built on. Those are two completely different jobs.

The numbers are blunt. In one large study, 39.1% of CMS applications were outdated at the point of infection (Sucuri, 2023). And most of the weak spots sit in add-ons, not the core. Researchers found that 96% of the vulnerabilities were uncovered in plugins, and 4% were found in themes (Patchstack, 2025). Worse, 43% of new vulnerabilities found in 2024 did not require any authentication to be exploited, meaning an attacker does not even need to log in.

This is not a niche problem either. According to one report, the exploitation of vulnerabilities as an initial point of entry almost tripled, accounting for 14% of all breaches (Verizon, 2024). In plain terms, unpatched software is how the bad guys get in, so updates do more for your safety than the padlock ever will.

The security basics every small business needs

You do not need to be a developer to be safe. Six habits cover almost every small business website. Work through them once, set them to run on their own, and you have closed most of the doors attackers use.

1. Turn on HTTPS

Install a free SSL certificate and make sure every page loads over HTTPS. Most hosts do this in one click. After that, force HTTP visitors to the secure version so nobody ever lands on the unprotected one.

2. Keep your software updated

Update your core software, plugins, and themes as updates arrive. This is the single most important habit, because outdated software is how most sites are broken into. Turn on automatic updates where you can, and check the rest weekly.

3. Use strong passwords and two-factor login

Pick long, unique passwords and never reuse them. Then turn on two-factor login, which asks for a code from your phone after your password. It is the highest-value minute you will spend, because MFA can block over 99.9 percent of account compromise attacks (Microsoft, 2019).

4. Take automatic backups

Set your site to back up on a schedule, and store copies somewhere off the server. A clean backup turns a disaster into an inconvenience, because you can roll back to yesterday instead of rebuilding from scratch.

5. Add a security plugin or firewall

A security plugin or web firewall blocks common attacks before they reach your site and warns you when something looks off. For most small sites, a well-reviewed free plugin is plenty to start.

6. Limit who can log in

Only give admin access to people who truly need it, and remove old accounts when staff or freelancers move on. Fewer logins means fewer ways in, so keep the list short and tidy.

Want this run for you on a schedule? It is exactly what a good website maintenance routine covers, month after month.

How to check if your site already has SSL

This part takes ten seconds. Open your website in a browser and look at the address bar. If you see a padlock and your address starts with https, you are covered. If you see Not Secure or your address starts with http, you are not.

One more thing to watch. Some sites have a certificate but still load a few old images or links over plain HTTP, which is called mixed content and can trip the warning. If your padlock looks broken even though SSL is on, that is usually why. A quick fix is to make every link and image on the site use the secure address.

While you are checking, make sure the secure site still looks right on a phone, since most visitors are on mobile. Our guide on making a website mobile friendly covers that side.

What to do if your site gets hacked

First, do not panic. It happens to careful people too, and it is usually fixable. Move fast, though, because the longer a hacked site stays live, the more damage it does to your visitors and your search rankings.

Start by contacting your hosting company, since they often spot and clean infections quickly. Next, change every password, including hosting, admin, and email, and turn on two-factor login if it was off. Then restore from a clean backup taken before the hack, which is why those automatic backups are worth so much.

After the site is clean, find the door they came in. Usually it is an outdated plugin or theme, so update everything and remove anything you do not use. If this feels out of your depth, that is normal, and it is the kind of thing we handle through our web design and care services. You can also browse more guides on the Seed Light blog.